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Security report for flensburg-mitmachen.de

Stadt Flensburg · Government · Germany

Medium risk. 3 critical or high findings in Email security, Security headers and 1 other check.

Security score

73/100

Risk levelMedium

0–100, higher is better. How it is calculated

The website flensburg-mitmachen.de is the official online citizen participation platform for the city of Flensburg, Germany. It leverages the open source CONSUL platform, customized by demokratie.today, to provide residents with tools to engage in local projects, discussions, surveys, and events. The platform serves as a transparent and accessible channel for public involvement in municipal decision-making processes. The target audience is primarily the residents and stakeholders of Flensburg interested in civic engagement and local governance. Technically, the site is built on Ruby on Rails using the CONSUL framework, enhanced with CKEditor 5 for content editing and Klaro for cookie consent management. The site demonstrates good mobile responsiveness, accessibility, and SEO practices. It uses HTTPS with proper CSRF protections but could improve by adding more security headers and publishing a formal security policy. From a security perspective, the platform shows a solid posture with encrypted connections, consent mechanisms, and no visible vulnerabilities or tracking beyond consent management. However, it lacks explicit incident response contacts and vulnerability disclosure information, which are recommended for transparency and security maturity. Overall, the site is trustworthy, professionally maintained, and aligned with GDPR compliance. The domain WHOIS data is limited but consistent with an official municipal platform. Strategic recommendations include enhancing security headers, publishing security and incident response policies, and possibly integrating analytics with privacy safeguards to better understand user engagement while maintaining compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

3 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  2. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching flensburg-mitmachen.de

This scan found 22 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
62
Security headers
70
Email security
60
DNS health
60
Network security
100
GDPR outside view
83
Average
73

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention flensburg-mitmachen.de, from OffSeq Breach.

No leaked records found

Breach holds no records for flensburg-mitmachen.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Brand lookalikes

Add-on

Domains that imitate flensburg-mitmachen.de and could be used for phishing or spoofed email, tracked in OffSeq Breach.

Tracked
1
Registered
1
Resolving
1
High or critical
0

Last checked 2026-06-19

Masked preview

  • fl••••••••••••.achen.deLowsubdomain

See the full lookalike list

A one-off add-on that lists up to 20 of the highest-risk lookalikes of flensburg-mitmachen.de with registration, mail-server, certificate and DNS signals.

Select it in the checkout above.

Lookalike data refreshes continuously. Monitoring on Breach alerts you when a variant is registered, gains a mail server or starts serving HTTPS.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Flensburg-mitmachen.de operates as a government essential entity providing digital civic engagement services. Its market position is that of an official municipal platform facilitating citizen participation in local governance. The business model is non-commercial, focusing on public service and transparency. Key services include project information dissemination, surveys, discussions, and event notifications. The platform supports democratic processes and community involvement, targeting residents of Flensburg. The partnership with demokratie.today and use of open source CONSUL software indicates a collaborative ecosystem. Growth indicators include active projects and user registrations exceeding 1,500. The platform's strategic value lies in fostering transparent governance and citizen empowerment.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and CSRF protections implemented. The presence of a cookie consent manager (Klaro) indicates attention to privacy compliance. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of advanced security headers such as Content-Security-Policy and lack of published security or incident response policies represent areas for improvement. No vulnerability disclosure or security.txt files were found, limiting transparency for security researchers. Overall, the platform is secure for its purpose but could enhance its security maturity by adopting additional best practices and formal policies.

Recommendations

  1. Implement additional HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to strengthen defense-in-depth.
  2. Publish a dedicated security policy and vulnerability disclosure page to improve transparency and encourage responsible reporting.
  3. Add incident response contact information such as security@ or abuse@ email addresses to facilitate timely communication of security issues.
  4. Consider integrating privacy-respecting analytics to monitor platform usage and improve user experience while maintaining GDPR compliance.
  5. Regularly review and update cookie and privacy policies to reflect evolving legal requirements and best practices.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stadt Flensburg
Description
Die offizielle Beteiligungsplattform der Stadt Flensburg. Die Open Source Plattform basiert auf dem CONSUL project und wurde von demokratie.today modifiziert.
Key services
Online-Bürgerbeteiligung, Projekte und Umfragen, Diskussionsforen, Veranstaltungsinformationen
Content quality
good
Branding
consistent

Technology

Stack
Ruby on Rails, CONSUL Open Source Platform, CKEditor 5, Klaro Consent Manager
Frameworks
Ruby on Rails
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • CSRF protection via authenticity tokens
  • Cookie consent management implemented

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Marketing tools
Klaro Consent Manager
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Official city government platform for citizen participation
  2. Uses open source CONSUL software customized by demokratie.today
  3. Multiple ongoing and completed projects listed with external links
  4. Clear privacy and cookie policies with consent management
  5. No signs of malicious or adult content
  6. No visible security policy or incident response contacts
  7. No analytics or tracking scripts detected beyond consent manager
  8. Good mobile and accessibility support
  9. WHOIS data limited but no suspicious indicators
Technical notes

Notes

The platform is built on a modern Ruby on Rails stack using the open source CONSUL civic engagement framework. It incorporates CKEditor 5 for rich text editing and Klaro for cookie consent management. The site uses responsive design techniques and includes accessibility features. Performance appears moderate with no obvious bottlenecks. SEO is supported by proper meta tags including Open Graph and Twitter cards. Hosting details are not explicit but the domain uses name servers from udag.de. The site could benefit from enhanced security headers and formal documentation of security practices. Overall, the technical implementation is solid and appropriate for a government civic engagement platform.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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